visualization

问题 I am creating a Django app and want to have visualizations of a social network. I'm looking for a library that can draw a graph/network data structure, but also make it interactive. I'd like to be able to click on a node and have information from that node be displayed (Name, Network, etc) somewhere else on the page So far I've found python-graph and graphviz to be very powerful visualization tools, but they create static images, so you can't click on them. I've also found this thread Graph

问题 Out of curiosity, I would love to know what tag clouds formats best serve the purpose of discovery of more and more (relevant)content? I am aware of 3 formats, but don't know which one is the best. 1) delicious one - color shading 2) The standard one with font size variations - 3) The one on this site - numbers showing importance/usage. So which ones do you prefer? and why? Edit: Thanks to the answers below, I now have much more understanding of tag cloud visualization techniques. 4) Parallel

问题 Are there any libraries or functions in R which would simplify the production of a comet plot? By this I mean an animated graph where the head (an arrow) traces the path of a particle, and it's body (a line) trails behind the head, with a length proportional to the velocity of the particle. Matlab has a very simple comet() function documented here: http://www.mathworks.co.uk/help/matlab/ref/comet.html An incredibly nice example of a comet plot showing current wind speeds is here: http://earth

问题 Are there any libraries or functions in R which would simplify the production of a comet plot? By this I mean an animated graph where the head (an arrow) traces the path of a particle, and it's body (a line) trails behind the head, with a length proportional to the velocity of the particle. Matlab has a very simple comet() function documented here: http://www.mathworks.co.uk/help/matlab/ref/comet.html An incredibly nice example of a comet plot showing current wind speeds is here: http://earth

问题 I've looked around Stack Overflow for an answer to this, but nowhere seems to give the correct answer or direction... My project will allow a user to upload a WAV, which ultimately will be converted to a low quality MP3 using FFmpeg on the server and it'll all be stored and served on Amazon S3. The next obstacle is working out how to extract a reliable waveform visualisation from this uploaded sound. I'm using Python and Django on Linux Ubuntu 10 on a VPS for this project... I'm, at the vert

问题 I have a database in MySQL which I want to visualize in D3.JS . In order to do that, first I want to parse the data in JSON format, then write a basic code which pulls data from database and visualize with D3.JS . I look around but couldn't find what I want since I'm new to D3.JS . How can I achieve that? Any help or clue appreciated. 回答1: The following is a php script that you should be able to save somewhere as a file (let's say you call it 'getdata.php') accessible from your HTML file with

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . I have a patch file (unified diff), like the output from svn diff , git diff , or diff -u ... . I want to review it, but the unified diff format - especially with many files & changes - is hard on my eyes. How can I get a nicely-formatted diff view from the patch file? I don't have the files themselves, only the

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . I have a patch file (unified diff), like the output from svn diff , git diff , or diff -u ... . I want to review it, but the unified diff format - especially with many files & changes - is hard on my eyes. How can I get a nicely-formatted diff view from the patch file? I don't have the files themselves, only the

问题 Is there (somewhere) a command-line program for Windows which will create PNG/JPEG visual from MP3/WAV? EDIT: This is a good example of how the image should look like. 回答1: Sox, "the Swiss Army knife of audio manipulation", can generate accurate PNG spectrograms from sound files. It plays pretty much anything, and binaries are available for Windows. At the most basic level, you'd use something like this: sox my.wav -n spectrogram If you want a spectrogram with no axes, titles, legends, and a

问题 What is the right approach for slicing a 3D mesh? The mesh are all closed surfaces and the slices need to be binary images of what's inside the mesh. So for example, a mesh representing a sphere and slice images are those of filled circles. I am looking for a software library or algorithm that I can integrate into my current C++ project. 回答1: My open source game library contains an implementation of mesh slicing. It works with the Irrlicht api, but could be rewritten to use a different API